Canvas.java revision fc615a0f643408956fc0dc1b997871e2b27cee7e
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.graphics; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.GraphicsOperations; 20f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.SpannableString; 21f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.SpannedString; 22f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Feltimport android.text.TextUtils; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport javax.microedition.khronos.opengles.GL; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Canvas class holds the "draw" calls. To draw something, you need 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4 basic components: A Bitmap to hold the pixels, a Canvas to host 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the draw calls (writing into the bitmap), a drawing primitive (e.g. Rect, 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Path, text, Bitmap), and a paint (to describe the colors and styles for the 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing). 3261fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * 3361fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <div class="special reference"> 3461fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <h3>Developer Guides</h3> 3561fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <p>For more information about how to use Canvas, read the 3661fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * <a href="{@docRoot}guide/topics/graphics/2d-graphics.html"> 3761fd1e8d8c3ccf2d6b7d4af1c19e8f0988d5a1ecJoe Fernandez * Canvas and Drawables</a> developer guide.</p></div> 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic class Canvas { 40fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger // assigned in constructors or setBitmap, freed in finalizer 41fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger int mNativeCanvas; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43e0aa84b7dc087e999e20055dcc04cb6a48d5bd62Romain Guy // may be null 44e0aa84b7dc087e999e20055dcc04cb6a48d5bd62Romain Guy private Bitmap mBitmap; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // optional field set by the caller 47ce0537b80087a6225273040a987414b1dd081aa0Romain Guy private DrawFilter mDrawFilter; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 50ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * @hide 51ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 52ce0537b80087a6225273040a987414b1dd081aa0Romain Guy protected int mDensity = Bitmap.DENSITY_NONE; 530d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 54ce0537b80087a6225273040a987414b1dd081aa0Romain Guy /** 55ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * Used to determine when compatibility scaling is in effect. 56ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * 57ce0537b80087a6225273040a987414b1dd081aa0Romain Guy * @hide 58ce0537b80087a6225273040a987414b1dd081aa0Romain Guy */ 59ce0537b80087a6225273040a987414b1dd081aa0Romain Guy protected int mScreenDensity = Bitmap.DENSITY_NONE; 6011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Used by native code 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @SuppressWarnings({"UnusedDeclaration"}) 63e0aa84b7dc087e999e20055dcc04cb6a48d5bd62Romain Guy private int mSurfaceFormat; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 66f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Flag for drawTextRun indicating left-to-right run direction. 67f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 68f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 69f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public static final int DIRECTION_LTR = 0; 70f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 71f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 72f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Flag for drawTextRun indicating right-to-left run direction. 73f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 74f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 75f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public static final int DIRECTION_RTL = 1; 76f61970fc79e9c5cf340fa942597628242361864aRomain Guy 77f61970fc79e9c5cf340fa942597628242361864aRomain Guy // Maximum bitmap size as defined in Skia's native code 78f61970fc79e9c5cf340fa942597628242361864aRomain Guy // (see SkCanvas.cpp, SkDraw.cpp) 79f61970fc79e9c5cf340fa942597628242361864aRomain Guy private static final int MAXMIMUM_BITMAP_SIZE = 32766; 80f61970fc79e9c5cf340fa942597628242361864aRomain Guy 814a317db43d2bbc992284dd1f651751f13734d017Romain Guy // This field is used to finalize the native Canvas properly 824a317db43d2bbc992284dd1f651751f13734d017Romain Guy @SuppressWarnings({"UnusedDeclaration"}) 83e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private final CanvasFinalizer mFinalizer; 84e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 85e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy private static class CanvasFinalizer { 86fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger private int mNativeCanvas; 87e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 88e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy public CanvasFinalizer(int nativeCanvas) { 89e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mNativeCanvas = nativeCanvas; 90e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 91e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 92e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy @Override 93e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy protected void finalize() throws Throwable { 943b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy try { 953b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy if (mNativeCanvas != 0) { 963b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy finalizer(mNativeCanvas); 973b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy } 983b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy } finally { 993b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy super.finalize(); 100e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 101e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 102e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy } 103e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy 104f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct an empty raster canvas. Use setBitmap() to specify a bitmap to 10696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * draw into. The initial target density is {@link Bitmap#DENSITY_NONE}; 10796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * this will typically be replaced when a target bitmap is set for the 10896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * canvas. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas() { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0 means no native bitmap 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(0); 1132fc941e4650d618ff6e122f28b616d9032ffa134Romain Guy mFinalizer = new CanvasFinalizer(mNativeCanvas); 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Construct a canvas with the specified bitmap to draw into. The bitmap 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * must be mutable. 11996e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 12096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>The initial target density of the canvas is the same as the given 12196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * bitmap's density. 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Canvas(Bitmap bitmap) { 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!bitmap.isMutable()) { 127f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy throw new IllegalStateException("Immutable bitmap passed to Canvas constructor"); 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = initRaster(bitmap.ni()); 131e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mFinalizer = new CanvasFinalizer(mNativeCanvas); 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 13396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = bitmap.mDensity; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 136163935113919a184122b8b3bd672ef08c8df65dcRomain Guy Canvas(int nativeCanvas) { 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (nativeCanvas == 0) { 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException(); 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNativeCanvas = nativeCanvas; 141e4ac2d6b5723c95e648c489b187ddde449452c13Patrick Dubroy mFinalizer = new CanvasFinalizer(nativeCanvas); 14296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn mDensity = Bitmap.getDefaultDensity(); 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 144163935113919a184122b8b3bd672ef08c8df65dcRomain Guy 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 146fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger * Replace existing canvas while ensuring that the swap has occurred before 147fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger * the previous native canvas is unreferenced. 148fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger */ 149fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger private void safeCanvasSwap(int nativeCanvas) { 150fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger final int oldCanvas = mNativeCanvas; 151fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger mNativeCanvas = nativeCanvas; 152fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger mFinalizer.mNativeCanvas = nativeCanvas; 153fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger finalizer(oldCanvas); 154fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger } 155fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger 156fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger /** 157163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * Returns null. 15896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * 159163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @deprecated This method is not supported and should not be invoked. 1603b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy * 1613b703f2d11f20efaa953ad31d6c97fe3561efb03Romain Guy * @hide 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 163cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne @Deprecated 164163935113919a184122b8b3bd672ef08c8df65dcRomain Guy protected GL getGL() { 165163935113919a184122b8b3bd672ef08c8df65dcRomain Guy return null; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1672d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy 1682d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy /** 1692d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Indicates whether this Canvas uses hardware acceleration. 1702d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1712d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * Note that this method does not define what type of hardware acceleration 1722d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * may or may not be used. 1732d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 1742d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * @return True if drawing operations are hardware accelerated, 1752d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * false otherwise. 1762d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy */ 1772d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy public boolean isHardwareAccelerated() { 178163935113919a184122b8b3bd672ef08c8df65dcRomain Guy return false; 179caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed } 180163935113919a184122b8b3bd672ef08c8df65dcRomain Guy 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 182fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger * Specify a bitmap for the canvas to draw into. As a side-effect, the 183fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger * canvas' target density is updated to match that of the bitmap while all 184fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger * other state such as the layers, filters, matrix, and clip are reset. 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap Specifies a mutable bitmap for the canvas to draw into. 18796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #setDensity(int) 18896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @see #getDensity() 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setBitmap(Bitmap bitmap) { 191163935113919a184122b8b3bd672ef08c8df65dcRomain Guy if (isHardwareAccelerated()) { 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new RuntimeException("Can't set a bitmap device on a GL canvas"); 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 195fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger if (bitmap == null) { 196fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger safeCanvasSwap(initRaster(0)); 197fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger mDensity = Bitmap.DENSITY_NONE; 198fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger } else { 1990965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy if (!bitmap.isMutable()) { 2000965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy throw new IllegalStateException(); 2010965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy } 2020965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy throwIfRecycled(bitmap); 203fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger 204fc615a0f643408956fc0dc1b997871e2b27cee7eDerek Sollenberger safeCanvasSwap(initRaster(bitmap.ni())); 2050965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy mDensity = bitmap.mDensity; 2060965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy } 2070965a3244b4c3009d08db2e084cdcb681ef66d26Romain Guy 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBitmap = bitmap; 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the viewport dimensions if this canvas is GL based. If it is not, 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this method is ignored and no exception is thrown. 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 215163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @param width The width of the viewport 216163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @param height The height of the viewport 2172d6145993e19d2bb664766dbaf3c1e9ad3d12cdcRomain Guy * 218163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @hide 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewport(int width, int height) { 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the device that the current layer draws into is opaque 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. does not support per-pixel alpha). 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the device that the current layer draws into is opaque 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean isOpaque(); 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the width of the current drawing layer 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the width of the current drawing layer 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getWidth(); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the height of the current drawing layer 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the height of the current drawing layer 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getHeight(); 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Returns the target density of the canvas. The default density is 24796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * derived from the density of its backing bitmap, or 24896e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} if there is not one.</p> 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25096e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @return Returns the current target density of the canvas, which is used 25196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25311ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #setDensity(int) 25411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#getDensity() 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public int getDensity() { 25711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn return mDensity; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26196e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * <p>Specifies the density for this Canvas' backing bitmap. This modifies 26296e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * the target density of the canvas itself, as well as the density of its 26396e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * backing bitmap via {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}. 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26596e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * @param density The new target density of the canvas, which is used 26696e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * to determine the scaling factor when drawing a bitmap into it. Use 26796e240f25a97c10bba863df328ed73a82c34ff61Dianne Hackborn * {@link Bitmap#DENSITY_NONE} to disable bitmap scaling. 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see #getDensity() 27011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * @see Bitmap#setDensity(int) 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn public void setDensity(int density) { 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mBitmap != null) { 27411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mBitmap.setDensity(density); 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn mDensity = density; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2790d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn /** @hide */ 2800d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn public void setScreenDensity(int density) { 2810d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn mScreenDensity = density; 2820d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn } 283f61970fc79e9c5cf340fa942597628242361864aRomain Guy 284f61970fc79e9c5cf340fa942597628242361864aRomain Guy /** 285f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Returns the maximum allowed width for bitmaps drawn with this canvas. 286f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Attempting to draw with a bitmap wider than this value will result 287f61970fc79e9c5cf340fa942597628242361864aRomain Guy * in an error. 288f61970fc79e9c5cf340fa942597628242361864aRomain Guy * 289f61970fc79e9c5cf340fa942597628242361864aRomain Guy * @see #getMaximumBitmapHeight() 290f61970fc79e9c5cf340fa942597628242361864aRomain Guy */ 291f61970fc79e9c5cf340fa942597628242361864aRomain Guy public int getMaximumBitmapWidth() { 292f61970fc79e9c5cf340fa942597628242361864aRomain Guy return MAXMIMUM_BITMAP_SIZE; 293f61970fc79e9c5cf340fa942597628242361864aRomain Guy } 2940d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn 295f61970fc79e9c5cf340fa942597628242361864aRomain Guy /** 296f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Returns the maximum allowed height for bitmaps drawn with this canvas. 297f61970fc79e9c5cf340fa942597628242361864aRomain Guy * Attempting to draw with a bitmap taller than this value will result 298f61970fc79e9c5cf340fa942597628242361864aRomain Guy * in an error. 299f61970fc79e9c5cf340fa942597628242361864aRomain Guy * 300f61970fc79e9c5cf340fa942597628242361864aRomain Guy * @see #getMaximumBitmapWidth() 301f61970fc79e9c5cf340fa942597628242361864aRomain Guy */ 302f61970fc79e9c5cf340fa942597628242361864aRomain Guy public int getMaximumBitmapHeight() { 303f61970fc79e9c5cf340fa942597628242361864aRomain Guy return MAXMIMUM_BITMAP_SIZE; 304f61970fc79e9c5cf340fa942597628242361864aRomain Guy } 305f61970fc79e9c5cf340fa942597628242361864aRomain Guy 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the SAVE_FLAG constants must match their native equivalents 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current matrix when restore() is called */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int MATRIX_SAVE_FLAG = 0x01; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore the current clip when restore() is called */ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_SAVE_FLAG = 0x02; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to per-pixel alpha */ 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int HAS_ALPHA_LAYER_SAVE_FLAG = 0x04; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** the layer needs to 8-bits per color component */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int FULL_COLOR_LAYER_SAVE_FLAG = 0x08; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** clip against the layer's bounds */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CLIP_TO_LAYER_SAVE_FLAG = 0x10; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** restore everything when restore() is called */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int ALL_SAVE_FLAG = 0x1F; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Saves the current matrix and clip onto a private stack. Subsequent 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * calls to translate,scale,rotate,skew,concat or clipRect,clipPath 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will all operate as usual, but when the balancing call to restore() 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is made, those calls will be forgotten, and the settings that existed 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * before the save() will be reinstated. 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Based on saveFlags, can save the current matrix and clip onto a private 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * stack. Subsequent calls to translate,scale,rotate,skew,concat or 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect,clipPath will all operate as usual, but when the balancing 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * call to restore() is made, those calls will be forgotten, and the 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * settings that existed before the save() will be reinstated. 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags flag bits that specify which parts of the Canvas state 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to save/restore 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The value to pass to restoreToCount() to balance this save() 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int save(int saveFlags); 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds May be null. The maximum size the offscreen bitmap 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * needs to be (in local coordinates) 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint This is copied, and is applied to the offscreen when 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * restore() is called. 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this save() 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayer(RectF bounds, Paint paint, int saveFlags) { 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, bounds, 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper version of saveLayer() that takes 4 values rather than a RectF. 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 370f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public int saveLayer(float left, float top, float right, float bottom, Paint paint, 371f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int saveFlags) { 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayer(mNativeCanvas, left, top, right, bottom, 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0, 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveFlags); 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This behaves the same as save(), but in addition it allocates an 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * offscreen bitmap. All drawing calls are directed there, and only when 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the balancing call to restore() is made is that offscreen transfered to 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the canvas (or the previous layer). Subsequent calls to translate, 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scale, rotate, skew, concat or clipRect, clipPath all operate on this 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * copy. When the balancing call to restore() is made, this copy is 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * deleted and the previous matrix/clip state is restored. 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds The maximum size the offscreen bitmap needs to be 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (in local coordinates) 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param alpha The alpha to apply to the offscreen when when it is 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawn during restore() 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveFlags see _SAVE_FLAG constants 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return value to pass to restoreToCount() to balance this call 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int saveLayerAlpha(RectF bounds, int alpha, int saveFlags) { 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha = Math.min(255, Math.max(0, alpha)); 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, bounds, alpha, saveFlags); 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for saveLayerAlpha() that takes 4 values instead of a RectF. 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 401f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public int saveLayerAlpha(float left, float top, float right, float bottom, int alpha, 402f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int saveFlags) { 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_saveLayerAlpha(mNativeCanvas, left, top, right, bottom, 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project alpha, saveFlags); 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This call balances a previous call to save(), and is used to remove all 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * modifications to the matrix/clip state since the last save call. It is 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * an error to call restore() more times than save() was called. 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restore(); 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of matrix/clip states on the Canvas' private stack. 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This will equal # save() calls - # restore() calls. 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native int getSaveCount(); 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Efficient way to pop any calls to save() that happened after the save 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * count reached saveCount. It is an error for saveCount to be less than 1. 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Example: 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * int count = canvas.save(); 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ... // more calls potentially to save() 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * canvas.restoreToCount(count); 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // now the canvas is back in the same state it was before the initial 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * // call to save(). 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param saveCount The save level to restore to. 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void restoreToCount(int saveCount); 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified translation 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dx The distance to translate in X 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dy The distance to translate in Y 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void translate(float dx, float dy); 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void scale(float sx, float sy); 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified scale. 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to scale in X 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to scale in Y 456cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne * @param px The x-coord for the pivot point (unchanged by the scale) 457cc3ec6cdb2b892eb29513e72d8b205acbe997b25Gilles Debunne * @param py The y-coord for the pivot point (unchanged by the scale) 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void scale(float sx, float sy, float px, float py) { 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scale(sx, sy); 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void rotate(float degrees); 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified rotation. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param degrees The amount to rotate, in degrees 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param px The x-coord for the pivot point (unchanged by the rotation) 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param py The y-coord for the pivot point (unchanged by the rotation) 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final void rotate(float degrees, float px, float py) { 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(px, py); 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rotate(degrees); 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(-px, -py); 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified skew. 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sx The amount to skew in X 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sy The amount to skew in Y 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void skew(float sx, float sy); 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Preconcat the current matrix with the specified matrix. 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to preconcatenate with the current matrix 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void concat(Matrix matrix) { 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_concat(mNativeCanvas, matrix.native_instance); 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Completely replace the current matrix with the specified matrix. If the 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix parameter is null, then the current matrix is reset to identity. 505f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * 506f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * <strong>Note:</strong> it is recommended to use {@link #concat(Matrix)}, 507f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * {@link #scale(float, float)}, {@link #translate(float, float)} and 508f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * {@link #rotate(float)} instead of this method. 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix to replace the current matrix with. If it is 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * null, set the current matrix to identity. 512f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * 513f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy * @see #concat(Matrix) 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setMatrix(Matrix matrix) { 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_setMatrix(mNativeCanvas, 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project matrix == null ? 0 : matrix.native_instance); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return, in ctm, the current transformation matrix. This does not alter 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the matrix in the canvas, but just returns a copy of it. 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 524f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy @Deprecated 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getMatrix(Matrix ctm) { 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_getCTM(mNativeCanvas, ctm.native_instance); 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52841030da16856c8869e1e51d4a0405432fa96614eRomain Guy 52941030da16856c8869e1e51d4a0405432fa96614eRomain Guy /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return a new matrix with a copy of the canvas' current transformation 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * matrix. 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53365447287cb4112cf74483c87be70bcd00b622e2dRomain Guy @Deprecated 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Matrix getMatrix() { 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Matrix m = new Matrix(); 536f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy //noinspection deprecation 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getMatrix(m); 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return m; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle. 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to intersect with the current clip 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(RectF rect, Region.Op op) { 549f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy return native_clipRect(mNativeCanvas, rect.left, rect.top, rect.right, rect.bottom, 550f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy op.nativeInt); 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRect(Rect rect, Region.Op op) { 562f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy return native_clipRect(mNativeCanvas, rect.left, rect.top, rect.right, rect.bottom, 563f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy op.nativeInt); 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(RectF rect); 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangle to intersect with the current clip. 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native boolean clipRect(Rect rect); 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified rectangle, which is 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 599f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public boolean clipRect(float left, float top, float right, float bottom, Region.Op op) { 600f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy return native_clipRect(mNativeCanvas, left, top, right, bottom, op.nativeInt); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 616f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native boolean clipRect(float left, float top, float right, float bottom); 617f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified rectangle, which is 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * expressed in local coordinates. 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to intersect with the 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to intersect with the current clip 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to intersect with the 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to intersect with the current 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting clip is non-empty 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 631f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native boolean clipRect(int left, int top, int right, int bottom); 632f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified path. 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to operate on the current clip 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path, Region.Op op) { 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipPath(mNativeCanvas, path.ni(), op.nativeInt); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified path. 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to intersect with the current clip 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipPath(Path path) { 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipPath(path, Region.Op.INTERSECT); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Modify the current clip with the specified region. Note that unlike 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param op How the clip is modified 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region, Region.Op op) { 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_clipRegion(mNativeCanvas, region.ni(), op.nativeInt); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Intersect the current clip with the specified region. Note that unlike 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clipRect() and clipPath() which transform their arguments by the 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, clipRegion() assumes its argument is already in the 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinate system of the current layer's bitmap, and so not 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * transformation is performed. 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param region The region to operate on the current clip, based on op 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the resulting is non-empty 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean clipRegion(Region region) { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return clipRegion(region, Region.Op.INTERSECT); 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public DrawFilter getDrawFilter() { 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDrawFilter; 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawFilter(DrawFilter filter) { 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter = 0; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filter != null) { 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeFilter = filter.mNativeInt; 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawFilter = filter; 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeSetDrawFilter(mNativeCanvas, nativeFilter); 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum EdgeType { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project BW(0), //!< treat edges by just rounding to nearest pixel boundary 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AA(1); //!< treat edges by rounding-out, since they may be antialiased 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EdgeType(int nativeInt) { 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 703c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy 704c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy /** 705c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy * @hide 706c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy */ 707c7d53494f1fbd9f9d74af89053ff9fdb1ccbac6cRomain Guy public final int nativeInt; 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect the rect to compare with the current clip 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type specifies how to treat the edges (BW or antialiased) 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(RectF rect, EdgeType type) { 722ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger return native_quickReject(mNativeCanvas, rect); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified path, after being transformed by the 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). Note: for speed it may 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * return false even if the path itself might not intersect the clip 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (i.e. the bounds of the path intersects, but the path does not). 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to compare with the current clip 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the path should be considered antialiased, 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * affect a larger area (more pixels) than 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * non-antialiased. 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the path (transformed by the canvas' matrix) 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean quickReject(Path path, EdgeType type) { 742ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger return native_quickReject(mNativeCanvas, path.ni()); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return true if the specified rectangle, after being transformed by the 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current matrix, would lie completely outside of the current clip. Call 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this to check if an area you intend to draw into is clipped out (and 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * therefore you can skip making the draw calls). 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to compare with the 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top of the rectangle to compare with the current 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * clip 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to compare with the 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom of the rectangle to compare with the 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * current clip 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param type true if the rect should be considered antialiased, 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * since that means it may affect a larger area (more 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * pixels) than non-antialiased. 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the rect (transformed by the canvas' matrix) 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * does not intersect with the canvas' clip 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 765ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger public boolean quickReject(float left, float top, float right, float bottom, 766ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger EdgeType type) { 767ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger return native_quickReject(mNativeCanvas, left, top, right, bottom); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds, returning true if they are non-empty. 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds Return the clip bounds here. If it is null, ignore it but 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * still return true if the current clip is non-empty. 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the current clip is non-empty. 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean getClipBounds(Rect bounds) { 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return native_getClipBounds(mNativeCanvas, bounds); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Retrieve the clip bounds. 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the clip bounds, or [0, 0, 0, 0] if the clip is empty. 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public final Rect getClipBounds() { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect r = new Rect(); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getClipBounds(r); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return r; 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified RGB color, using srcover porterduff mode. 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRGB(int r, int g, int b) { 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRGB(mNativeCanvas, r, g, b); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified ARGB color, using srcover porterduff mode. 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param a alpha component (0..255) of the color to draw onto the canvas 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r red component (0..255) of the color to draw onto the canvas 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param g green component (0..255) of the color to draw onto the canvas 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param b blue component (0..255) of the color to draw onto the canvas 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawARGB(int a, int r, int g, int b) { 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawARGB(mNativeCanvas, a, r, g, b); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color, using srcover porterduff mode. 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw onto the canvas 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color) { 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with the 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified color and porter-duff xfermode. 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color the color to draw with 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the porter-duff mode to apply to the color 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawColor(int color, PorterDuff.Mode mode) { 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawColor(mNativeCanvas, color, mode.nativeInt); 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill the entire canvas' bitmap (restricted to the current clip) with 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint. This is equivalent (but faster) to drawing an 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * infinitely large rectangle with the specified paint. 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw onto the canvas 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPaint(Paint paint) { 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPaint(mNativeCanvas, paint.mNativePaint); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of points. Each point is centered at the coordinate 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specified by pts[], and its diameter is specified by the paint's stroke 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * width (as transformed by the canvas' CTM), with special treatment for 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * a stroke width of 0, which always draws exactly 1 pixel (or at most 4 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if antialiasing is enabled). The shape of the point is controlled by 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the paint's Cap type. The shape is a square, unless the cap type is 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Round, in which case the shape is a circle. 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values to skip before starting to draw. 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values to process, after skipping offset 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of them. Since one point uses two values, the number of 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * "points" that are drawn is really (count >> 1). 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 865f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native void drawPoints(float[] pts, int offset, int count, Paint paint); 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() that assumes you want to draw the entire array 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPoints(float[] pts, Paint paint) { 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPoints(pts, 0, pts.length, paint); 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper for drawPoints() for drawing a single point. 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public native void drawPoint(float x, float y, Paint paint); 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a line segment with the specified start and stop x,y coordinates, 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * using the specified paint. NOTE: since a line is always "framed", the 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Style is ignored in the paint. 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startX The x-coordinate of the start point of the line 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startY The y-coordinate of the start point of the line 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the line 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 888f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawLine(float startX, float startY, float stopX, float stopY, Paint paint) { 889f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawLine(mNativeCanvas, startX, startY, stopX, stopY, paint.mNativePaint); 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw a series of lines. Each line is taken from 4 consecutive values 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the pts array. Thus to draw 1 line, the array must contain at least 4 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. This is logically the same as drawing the array as follows: 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[0], pts[1], pts[2], pts[3]) followed by 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawLine(pts[4], pts[5], pts[6], pts[7]) and so on. 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pts Array of points to draw [x0 y0 x1 y1 x2 y2 ...] 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Number of values in the array to skip before drawing. 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of values in the array to process, after 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * skipping "offset" of them. Since each line uses 4 values, 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the number of "lines" that are drawn is really 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (count >> 2). 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the points 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 907f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public native void drawLines(float[] pts, int offset, int count, Paint paint); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawLines(float[] pts, Paint paint) { 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawLines(pts, 0, pts.length, paint); 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rect to be drawn 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(RectF rect, Paint paint) { 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRect(mNativeCanvas, rect, paint.mNativePaint); 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified Paint. The rectangle 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param r The rectangle to be drawn. 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rectangle 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRect(Rect r, Paint paint) { 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawRect(r.left, r.top, r.right, r.bottom, paint); 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified Rect using the specified paint. The rectangle will 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be filled or framed based on the Style in the paint. 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The left side of the rectangle to be drawn 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The top side of the rectangle to be drawn 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param right The right side of the rectangle to be drawn 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bottom The bottom side of the rectangle to be drawn 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the rect 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 946f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawRect(float left, float top, float right, float bottom, Paint paint) { 947f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawRect(mNativeCanvas, left, top, right, bottom, paint.mNativePaint); 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified oval using the specified paint. The oval will be 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The rectangle bounds of the oval to be drawn 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawOval(RectF oval, Paint paint) { 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawOval(mNativeCanvas, oval, paint.mNativePaint); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified circle using the specified paint. If radius is <= 0, 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then nothing will be drawn. The circle will be filled or framed based 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on the Style in the paint. 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cx The x-coordinate of the center of the cirle to be drawn 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cy The y-coordinate of the center of the cirle to be drawn 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param radius The radius of the cirle to be drawn 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the circle 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawCircle(float cx, float cy, float radius, Paint paint) { 974f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawCircle(mNativeCanvas, cx, cy, radius, paint.mNativePaint); 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9784a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>Draw the specified arc, which will be scaled to fit inside the 9794a317db43d2bbc992284dd1f651751f13734d017Romain Guy * specified oval.</p> 9804a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9814a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>If the start angle is negative or >= 360, the start angle is treated 9824a317db43d2bbc992284dd1f651751f13734d017Romain Guy * as start angle modulo 360.</p> 9834a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9844a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>If the sweep angle is >= 360, then the oval is drawn 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * completely. Note that this differs slightly from SkPath::arcTo, which 9864a317db43d2bbc992284dd1f651751f13734d017Romain Guy * treats the sweep angle modulo 360. If the sweep angle is negative, 9874a317db43d2bbc992284dd1f651751f13734d017Romain Guy * the sweep angle is treated as sweep angle modulo 360</p> 9884a317db43d2bbc992284dd1f651751f13734d017Romain Guy * 9894a317db43d2bbc992284dd1f651751f13734d017Romain Guy * <p>The arc is drawn clockwise. An angle of 0 degrees correspond to the 9904a317db43d2bbc992284dd1f651751f13734d017Romain Guy * geometric angle of 0 degrees (3 o'clock on a watch.)</p> 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param oval The bounds of oval used to define the shape and size 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the arc 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param startAngle Starting angle (in degrees) where the arc begins 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param sweepAngle Sweep angle (in degrees) measured clockwise 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param useCenter If true, include the center of the oval in the arc, and 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project close it if it is being stroked. This will draw a wedge 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the arc 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1000f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, 1001f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy Paint paint) { 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (oval == null) { 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawArc(mNativeCanvas, oval, startAngle, sweepAngle, 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useCenter, paint.mNativePaint); 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified round-rect using the specified paint. The roundrect 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * will be filled or framed based on the Style in the paint. 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rect The rectangular bounds of the roundRect to be drawn 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param rx The x-radius of the oval used to round the corners 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param ry The y-radius of the oval used to round the corners 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the roundRect 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawRoundRect(RectF rect, float rx, float ry, Paint paint) { 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (rect == null) { 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawRoundRect(mNativeCanvas, rect, rx, ry, 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified path using the specified paint. The path will be 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * filled or framed based on the Style in the paint. 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path to be drawn 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the path 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPath(Path path, Paint paint) { 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPath(mNativeCanvas, path.ni(), paint.mNativePaint); 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static void throwIfRecycled(Bitmap bitmap) { 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bitmap.isRecycled()) { 1039f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy throw new RuntimeException("Canvas: trying to use a recycled bitmap " + bitmap); 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1044deba785f122a47915756ffd991f5540d952cf937Romain Guy * Draws the specified bitmap as an N-patch (most often, a 9-patches.) 1045deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1046deba785f122a47915756ffd991f5540d952cf937Romain Guy * Note: Only supported by hardware accelerated canvas at the moment. 1047deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1048deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param bitmap The bitmap to draw as an N-patch 1049deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param chunks The patches information (matches the native struct Res_png_9patch) 1050deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param dst The destination rectangle. 1051deba785f122a47915756ffd991f5540d952cf937Romain Guy * @param paint The paint to draw the bitmap with. may be null 1052deba785f122a47915756ffd991f5540d952cf937Romain Guy * 1053deba785f122a47915756ffd991f5540d952cf937Romain Guy * @hide 1054deba785f122a47915756ffd991f5540d952cf937Romain Guy */ 1055deba785f122a47915756ffd991f5540d952cf937Romain Guy public void drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint) { 1056deba785f122a47915756ffd991f5540d952cf937Romain Guy } 1057deba785f122a47915756ffd991f5540d952cf937Romain Guy 1058deba785f122a47915756ffd991f5540d952cf937Romain Guy /** 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, with its top/left corner at (x,y), using 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified paint, transformed by the current matrix. 106111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 106211ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 106811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>If the bitmap and canvas have different densities, this function 106911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * will take care of automatically scaling the bitmap to draw at the 107011ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * same density as the canvas. 107111ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param left The position of the left side of the bitmap being drawn 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param top The position of the top side of the bitmap being drawn 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used to draw the bitmap (may be null) 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, float left, float top, Paint paint) { 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), left, top, 1080f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint != null ? paint.mNativePaint : 0, mDensity, mScreenDensity, bitmap.mDensity); 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 108711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 108811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109411ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 109511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 109611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 109711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 109811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint) { 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 1111f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint != null ? paint.mNativePaint : 0, mScreenDensity, bitmap.mDensity); 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified bitmap, scaling/translating automatically to fill 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the destination rectangle. If the source rectangle is not null, it 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * specifies the subset of the bitmap to draw. 111811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 111911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>Note: if the paint contains a maskfilter that generates a mask which 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * then the bitmap will be drawn as if it were in a Shader with CLAMP mode. 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Thus the color outside of the original width/height will be the edge 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color replicated. 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 112511ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * <p>This function <em>ignores the density associated with the bitmap</em>. 112611ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * This is because the source and destination rectangle coordinate 112711ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * spaces are in their respective densities, so must already have the 112811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * appropriate scaling factor applied. 112911ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn * 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to be drawn 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param src May be null. The subset of the bitmap to be drawn 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dst The rectangle that the bitmap will be scaled/translated 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to fit into 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint) { 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (dst == null) { 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new NullPointerException(); 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throwIfRecycled(bitmap); 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, bitmap.ni(), src, dst, 1142f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint != null ? paint.mNativePaint : 0, mScreenDensity, bitmap.mDensity); 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Treat the specified array of colors as a bitmap, and draw it. This gives 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the same result as first creating a bitmap from the array, and then 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawing it, but this method avoids explicitly creating a bitmap object 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which can be more efficient if the colors are changing often. 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors Array of colors representing the pixels of the bitmap 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Offset into the array of colors for the first pixel 115383d522290e56f614d0d9373d47c2b54b9e207795Brad Fitzpatrick * @param stride The number of colors in the array between rows (must be 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * >= width or <= -width). 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The X coordinate for where to draw the bitmap 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The Y coordinate for where to draw the bitmap 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param width The width of the bitmap 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param height The height of the bitmap 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hasAlpha True if the alpha channel of the colors contains valid 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values. If false, the alpha byte is ignored (assumed to 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * be 0xFF for every pixel). 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1164f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawBitmap(int[] colors, int offset, int stride, float x, float y, 1165f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int width, int height, boolean hasAlpha, Paint paint) { 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // check for valid input 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width < 0) { 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("width must be >= 0"); 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height < 0) { 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("height must be >= 0"); 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(stride) < width) { 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("abs(stride) must be >= width"); 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int lastScanline = offset + (height - 1) * stride; 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = colors.length; 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (offset < 0 || (offset + width > length) || lastScanline < 0 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project || (lastScanline + width > length)) { 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // quick escape if there's nothing to draw 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (width == 0 || height == 0) { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // punch down to native for the actual draw 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawBitmap(mNativeCanvas, colors, offset, stride, x, y, width, height, hasAlpha, 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(int[] colors, int offset, int stride, int x, int y, 1194f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy int width, int height, boolean hasAlpha, Paint paint) { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // call through to the common float version 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawBitmap(colors, offset, stride, (float)x, (float)y, width, height, 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hasAlpha, paint); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap using the specified matrix. 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param matrix The matrix used to transform the bitmap when it is drawn 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmap(Bitmap bitmap, Matrix matrix, Paint paint) { 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMatrix(mNativeCanvas, bitmap.ni(), matrix.ni(), 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12115a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy 12125a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy /** 12135a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy * @hide 12145a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy */ 12155a7b466a2b4b7ced739bd5c31e022de61650545aRomain Guy protected static void checkRange(int length, int offset, int count) { 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((offset | count) < 0 || offset + count > length) { 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the bitmap through the mesh, where mesh vertices are evenly 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed across the bitmap. There are meshWidth+1 vertices across, and 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * meshHeight+1 vertices down. The verts array is accessed in row-major 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * order, so that the first meshWidth+1 vertices are distributed across the 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * top of the bitmap from left to right. A more general version of this 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methid is drawVertices(). 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bitmap The bitmap to draw using the mesh 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshWidth The number of columns in the mesh. Nothing is drawn if 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param meshHeight The number of rows in the mesh. Nothing is drawn if 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is 0 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of x,y pairs, specifying where the mesh should be 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drawn. There must be at least 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (meshWidth+1) * (meshHeight+1) * 2 + meshOffset values 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the array 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of verts elements to skip before drawing 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. Specifies a color at each vertex, which is 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * interpolated across the cell, and whose values are 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * multiplied by the corresponding bitmap colors. If not null, 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * there must be at least (meshWidth+1) * (meshHeight+1) + 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colorOffset values in the array. 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of color elements to skip before drawing 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint May be null. The paint used to draw the bitmap 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, 1248f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float[] verts, int vertOffset, int[] colors, int colorOffset, Paint paint) { 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((meshWidth | meshHeight | vertOffset | colorOffset) < 0) { 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (meshWidth == 0 || meshHeight == 0) { 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = (meshWidth + 1) * (meshHeight + 1); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we mul by 2 since we need two floats per vertex 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, count * 2); 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no mul by 2, since we need only 1 color per vertex 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(colors.length, colorOffset, count); 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawBitmapMesh(mNativeCanvas, bitmap.ni(), meshWidth, meshHeight, 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project verts, vertOffset, colors, colorOffset, 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint != null ? paint.mNativePaint : 0); 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1266f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public enum VertexMode { 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLES(0), 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_STRIP(1), 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRIANGLE_FAN(2); 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project VertexMode(int nativeInt) { 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.nativeInt = nativeInt; 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1275a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy 1276a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy /** 1277a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy * @hide 1278a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy */ 1279a566b7c3aada08d37cf08096c972e3e641bed773Romain Guy public final int nativeInt; 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the array of vertices, interpreted as triangles (based on mode). The 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * verts array is required, and specifies the x,y pairs for each vertex. If 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * texs is non-null, then it is used to specify the coordinate in shader 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * coordinates to use at each vertex (the paint must have a shader in this 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * case). If there is no texs array, but there is a color array, then each 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * color is interpolated across its corresponding triangle in a gradient. If 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * both texs and colors arrays are present, then they behave as before, but 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the resulting color at each pixels is the result of multiplying the 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * colors from the shader and the color-gradient together. The indices array 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is optional, but if it is present, then it is used to specify the index 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of each triangle, rather than just walking through the arrays in order. 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode How to interpret the array of vertices 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertexCount The number of values in the vertices array (and 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * corresponding texs and colors arrays if non-null). Each logical 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex is two values (x, y), vertexCount must be a multiple of 2. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param verts Array of vertices for the mesh 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vertOffset Number of values in the verts to skip before drawing. 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texs May be null. If not null, specifies the coordinates to sample 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * into the current shader (e.g. bitmap tile or gradient) 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param texOffset Number of values in texs to skip before drawing. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colors May be null. If not null, specifies a color for each 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex, to be interpolated across the triangle. 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param colorOffset Number of values in colors to skip before drawing. 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indices If not null, array of indices to reference into the 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * vertex (texs, colors) array. 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param indexCount number of entries in the indices array (if not null). 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint Specifies the shader to use if the texs array is non-null. 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1312f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawVertices(VertexMode mode, int vertexCount, float[] verts, int vertOffset, 1313f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float[] texs, int texOffset, int[] colors, int colorOffset, 1314f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy short[] indices, int indexOffset, int indexCount, Paint paint) { 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(verts.length, vertOffset, vertexCount); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (texs != null) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(texs.length, texOffset, vertexCount); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (colors != null) { 132092ce5734b52ef014c80cc6335112a027188b3eb6Erik Faye-Lund checkRange(colors.length, colorOffset, vertexCount / 2); 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indices != null) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkRange(indices.length, indexOffset, indexCount); 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project nativeDrawVertices(mNativeCanvas, mode.nativeInt, vertexCount, verts, 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vertOffset, texs, texOffset, colors, colorOffset, 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project indices, indexOffset, indexCount, paint.mNativePaint); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawText(char[] text, int index, int count, float x, float y, Paint paint) { 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((index | count | (index + count) | 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (text.length - index - count)) < 0) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1344f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, index, count, x, y, paint.mBidiFlags, 1345f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. The 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin is interpreted based on the Align setting in the paint. 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1357f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt public void drawText(String text, float x, float y, Paint paint) { 1358f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, 0, text.length(), x, y, paint.mBidiFlags, 1359f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 1360f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint. 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The origin is interpreted based on the Align setting in the paint. 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text to draw 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of the origin of the text being drawn 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of the origin of the text being drawn 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1373f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawText(String text, int start, int end, float x, float y, Paint paint) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((start | end | (end - start) | (text.length() - end)) < 0) { 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1377f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt native_drawText(mNativeCanvas, text, start, end, x, y, paint.mBidiFlags, 1378f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mNativePaint); 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the specified range of text, specified by start/end, with its 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * origin at (x,y), in the specified Paint. The origin is interpreted 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * based on the Align setting in the Paint. 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param start The index of the first character in text to draw 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param end (end - 1) is the index of the last character in text 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to draw 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x The x-coordinate of origin for where to draw the text 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y The y-coordinate of origin for where to draw the text 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1394f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawText(CharSequence text, int start, int end, float x, float y, Paint paint) { 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text instanceof String || text instanceof SpannedString || 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project text instanceof SpannableString) { 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawText(mNativeCanvas, text.toString(), start, end, x, y, 1398f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mBidiFlags, paint.mNativePaint); 1399f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((GraphicsOperations) text).drawText(this, start, end, x, y, 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint); 1402f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 1403f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt char[] buf = TemporaryBuffer.obtain(end - start); 1404f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TextUtils.getChars(text, start, end, buf, 0); 1405796cc96243a57cd1b652bd90c4e7ba7823c6c2feFabrice Di Meglio native_drawText(mNativeCanvas, buf, 0, end - start, x, y, 1406f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt paint.mBidiFlags, paint.mNativePaint); 1407f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt TemporaryBuffer.recycle(buf); 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1409f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1410f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1411f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1412f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1413f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1414f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1415f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 1416f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * 1417f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 14180c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param index the start of the text to render 14190c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param count the count of chars to render 14200c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param contextIndex the start of the context for shaping. Must be 14210c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * no greater than index. 14220c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param contextCount the number of characters in the context for shaping. 14230c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * ContexIndex + contextCount must be no less than index 14240c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * + count. 1425f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1426f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 14270c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * @param dir the run direction, either {@link #DIRECTION_LTR} or 14280c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * {@link #DIRECTION_RTL}. 1429f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1430f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1431f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 1432f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, 1433f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float x, float y, int dir, Paint paint) { 1434f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1435f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1436f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1437f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1438f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1439f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1440f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 14410c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt if ((index | count | text.length - index - count) < 0) { 1442f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1443f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1444f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (dir != DIRECTION_LTR && dir != DIRECTION_RTL) { 1445f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IllegalArgumentException("unknown dir: " + dir); 1446f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1447f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 14480c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, text, index, count, 14490c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt contextIndex, contextCount, x, y, dir, paint.mNativePaint); 1450f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1451f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1452f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt /** 1453f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * Render a run of all LTR or all RTL text, with shaping. This does not run 1454f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * bidi on the provided text, but renders it as a uniform right-to-left or 1455f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * left-to-right run, as indicated by dir. Alignment of the text is as 1456f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * determined by the Paint's TextAlign value. 14570c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt * 1458f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param text the text to render 1459f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param start the start of the text to render. Data before this position 1460f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * can be used for shaping context. 1461f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param end the end of the text to render. Data at or after this 1462f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * position can be used for shaping context. 1463f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param x the x position at which to draw the text 1464f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param y the y position at which to draw the text 1465f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param dir the run direction, either 0 for LTR or 1 for RTL. 1466f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @param paint the paint 1467f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt * @hide 1468f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt */ 1469f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, 1470f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float x, float y, int dir, Paint paint) { 1471f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1472f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text == null) { 1473f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("text is null"); 1474f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1475f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (paint == null) { 1476f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new NullPointerException("paint is null"); 1477f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1478f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if ((start | end | end - start | text.length() - end) < 0) { 1479f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt throw new IndexOutOfBoundsException(); 1480f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } 1481f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1482f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt int flags = dir == 0 ? 0 : 1; 1483f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 1484f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt if (text instanceof String || text instanceof SpannedString || 1485f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt text instanceof SpannableString) { 14860c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, text.toString(), start, end, 14870c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt contextStart, contextEnd, x, y, flags, paint.mNativePaint); 1488f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else if (text instanceof GraphicsOperations) { 14890c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt ((GraphicsOperations) text).drawTextRun(this, start, end, 14900c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt contextStart, contextEnd, x, y, flags, paint); 1491f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt } else { 14920c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int contextLen = contextEnd - contextStart; 14930c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int len = end - start; 14940c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt char[] buf = TemporaryBuffer.obtain(contextLen); 14950c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt TextUtils.getChars(text, contextStart, contextEnd, buf, 0); 14960c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt native_drawTextRun(mNativeCanvas, buf, start - contextStart, len, 14970c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt 0, contextLen, x, y, flags, paint.mNativePaint); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TemporaryBuffer.recycle(buf); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 150562b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * 150662b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * This method does not support glyph composition and decomposition and 150762b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * should therefore not be used to render complex scripts. 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param index The index of the first character to draw 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param count The number of characters to draw, starting from index. 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * character 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1516f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy @Deprecated 1517f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawPosText(char[] text, int index, int count, float[] pos, Paint paint) { 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length || count*2 > pos.length) { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IndexOutOfBoundsException(); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, index, count, pos, 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project paint.mNativePaint); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text in the array, with each character's origin specified by 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pos array. 152862b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * 152962b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * This method does not support glyph composition and decomposition and 153062b6eaa7f3a8111311a7ee097f278eb55865a499Romain Guy * should therefore not be used to render complex scripts. 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param pos Array of [x,y] positions, used to position each character 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1536f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy @Deprecated 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPosText(String text, float[] pos, Paint paint) { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length()*2 > pos.length) { 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPosText(mNativeCanvas, text, pos, paint.mNativePaint); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawTextOnPath(char[] text, int index, int count, Path path, 1558f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy float hOffset, float vOffset, Paint paint) { 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index < 0 || index + count > text.length) { 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new ArrayIndexOutOfBoundsException(); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawTextOnPath(mNativeCanvas, text, index, count, 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project path.ni(), hOffset, vOffset, 15644beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt paint.mBidiFlags, paint.mNativePaint); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the text, with origin at (x,y), using the specified paint, along 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the specified path. The paint's Align setting determins where along the 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * path to start the text. 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param text The text to be drawn 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param path The path the text should follow for its baseline 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hOffset The distance along the path to add to the text's 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * starting position 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param vOffset The distance above(-) or below(+) the path to position 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the text 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param paint The paint used for the text (e.g. color, size, style) 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1580f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy public void drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint) { 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (text.length() > 0) { 1582f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy native_drawTextOnPath(mNativeCanvas, text, path.ni(), hOffset, vOffset, 1583f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy paint.mBidiFlags, paint.mNativePaint); 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Save the canvas state, draw the picture, and restore the canvas state. 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This differs from picture.draw(canvas), which does not perform any 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * save/restore. 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param picture The picture to be drawn 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture) { 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project picture.endRecording(); 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project native_drawPicture(mNativeCanvas, picture.ni()); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, RectF dst) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1606f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy scale(dst.width() / picture.getWidth(), dst.height() / picture.getHeight()); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Draw the picture, stretched to fit into the dst rectangle. 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void drawPicture(Picture picture, Rect dst) { 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project save(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project translate(dst.left, dst.top); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (picture.getWidth() > 0 && picture.getHeight() > 0) { 1619f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy scale((float) dst.width() / picture.getWidth(), 1620f9d9c065ed75f1196316a9a31f92309f602cef76Romain Guy (float) dst.height() / picture.getHeight()); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawPicture(picture); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project restore(); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1625da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy 1626da8532c6f48b4c10b5e2ccb9e08690341efa1616Romain Guy /** 1627163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * Free up as much memory as possible from private caches (e.g. fonts, images) 1628caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed * 1629163935113919a184122b8b3bd672ef08c8df65dcRomain Guy * @hide 1630caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed */ 1631caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed public static native void freeCaches(); 1632caf0df1b7f99736aed1a0b923ef278fc4fd0fccaMike Reed 163330ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio /** 163430ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio * Free up text layout caches 163530ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio * 163630ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio * @hide 163730ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio */ 163830ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio public static native void freeTextLayoutCaches(); 163930ca5cd11a23f06f2f8eeaa587685450826f800fFabrice Di Meglio 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int initRaster(int nativeBitmapOrZero); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, RectF bounds, 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayer(int nativeCanvas, float l, 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint, int layerFlags); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF bounds, int alpha, 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int layerFlags); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native int native_saveLayerAlpha(int nativeCanvas, float l, 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float t, float r, float b, 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int alpha, int layerFlags); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_concat(int nCanvas, int nMatrix); 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_setMatrix(int nCanvas, int nMatrix); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRect(int nCanvas, 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float right, float bottom, 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipPath(int nativeCanvas, 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePath, 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_clipRegion(int nativeCanvas, 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeRegion, 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int regionOp); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeSetDrawFilter(int nativeCanvas, 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativeFilter); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_getClipBounds(int nativeCanvas, 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect bounds); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_getCTM(int canvas, int matrix); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 1671ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger RectF rect); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 1673ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger int path); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native boolean native_quickReject(int nativeCanvas, 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 1676ca79cf69d09efa0c327e9b1237d86a119aea5da7Derek Sollenberger float right, float bottom); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRGB(int nativeCanvas, int r, int g, 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int b); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawARGB(int nativeCanvas, int a, int r, 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int g, int b); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawColor(int nativeCanvas, int color, 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mode); 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPaint(int nativeCanvas, int paint); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawLine(int nativeCanvas, float startX, 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startY, float stopX, 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float stopY, int paint); 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, RectF rect, 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRect(int nativeCanvas, float left, 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float top, float right, 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float bottom, int paint); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawOval(int nativeCanvas, RectF oval, 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawCircle(int nativeCanvas, float cx, 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float cy, float radius, 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawArc(int nativeCanvas, RectF oval, 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float startAngle, float sweep, 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useCenter, int paint); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawRoundRect(int nativeCanvas, 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RectF rect, float rx, 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float ry, int paint); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPath(int nativeCanvas, int path, 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float left, float top, 170811ea33471e1a14a8594f0b2cd012d86340dd3bd8Dianne Hackborn int nativePaintOrZero, 17090d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int canvasDensity, 17100d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 17110d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private native void native_drawBitmap(int nativeCanvas, int bitmap, 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, RectF dst, 17140d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 17150d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 17160d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int bitmap, 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect src, Rect dst, 17190d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int nativePaintOrZero, 17200d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int screenDensity, 17210d221012ff5fd314711c00ed30e9b807b9c454c1Dianne Hackborn int bitmapDensity); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawBitmap(int nativeCanvas, int[] colors, 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offset, int stride, float x, 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float y, int width, int height, 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean hasAlpha, 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePaintOrZero); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMatrix(int nCanvas, int nBitmap, 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nMatrix, int nPaint); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawBitmapMesh(int nCanvas, int nBitmap, 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int meshWidth, int meshHeight, 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, int nPaint); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void nativeDrawVertices(int nCanvas, int mode, int n, 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float[] verts, int vertOffset, float[] texs, int texOffset, 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] colors, int colorOffset, short[] indices, 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int indexOffset, int indexCount, int nPaint); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, char[] text, 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index, int count, float x, 1740f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int flags, int paint); 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawText(int nativeCanvas, String text, 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start, int end, float x, 1743f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt float y, int flags, int paint); 1744fcf2be1846935e7983ea2fe87fdd4d7af27764b6Fabrice Di Meglio 17450c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt private static native void native_drawTextRun(int nativeCanvas, String text, 17460c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int start, int end, int contextStart, int contextEnd, 17470c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt float x, float y, int flags, int paint); 1748f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 17490c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt private static native void native_drawTextRun(int nativeCanvas, char[] text, 17500c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt int start, int count, int contextStart, int contextCount, 17510c702b88c5d0d4380930b920f5be6e66dd95a0d8Doug Felt float x, float y, int flags, int paint); 1752f47d7405bbcb25d7cdf89ebb059f41520fe9ab87Doug Felt 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, float[] pos, 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPosText(int nativeCanvas, 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, float[] pos, 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int paint); 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project char[] text, int index, 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count, int path, 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project float hOffset, 17644beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float vOffset, int bidiFlags, 17654beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt int paint); 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawTextOnPath(int nativeCanvas, 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String text, int path, 17684beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float hOffset, 17694beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt float vOffset, 17704beb8ff7175ebd14b96942724a658f407d0b9951Doug Felt int flags, int paint); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void native_drawPicture(int nativeCanvas, 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int nativePicture); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static native void finalizer(int nativeCanvas); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 1775